{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["enabling technology", "material", "process characterization", "machanical property", "engineering feature", "process parameter"], "input": "The microhardness and tensile strength show obvious variation in different regions ."}
{"enabling technology": [], "material": [], "process characterization": [], "machanical property": ["tensile strength"], "engineering feature": [], "process parameter": []}